However, lacking requested reinforcements from McClellan, now commanding the Army of the Potomac, Pope was soundly defeated at the Second Battle of Bull Run in the summer of 1862, forcing the Army of the Potomac to defend Washington for a second time.

However, lacking fluency in the Japanese language, he had to limit himself to reading aloud the translation of a catechism.

However, lacking his sword, Freyr will be killed by the fire jötunn Surtr during the events of Ragnarök.

However, by the mid-19th century, environmental determinism was under attack for lacking methodological rigour associated with modern science, and later as serving to justify racism and imperialism.

However, a study of genetically modified dogs lacking orexin receptors showed that modafinil still promoted wakefulness in these animals, suggesting that orexin activation is not required for the effects of modafinil.

However, his works were criticized for lacking characteristics of true polyphonism, as pointed out by Eugène Ysaÿe.

However some have found these to be loose rather than well-defined and lacking persistent focus, there was relatively low cohesion, few shared goals and little organisational structure.

However, the model was not anatomically correct and embodied vertical and horizontal tail stabilizers that were lacking in pterosaurs.

However, due to most of the Sonic Team staff lacking the ability to speak English, there was trouble with language barriers and differences in approach to game design.

However, it is widely perceived that some aspects of the political process, civil liberties, and political and human rights are lacking.

However, some critics have dismissed these influences as lacking in intellectual credibility.

However, bacteria lacking antigen F1 are still virulent, and the V antigens are sufficiently variable, such that vaccines composed of these antigens may not be fully protective.

However many rural areas remain lacking DSL and cable modem services.

However, Bryan, lacking a seat at the start of the convention, could not be elected temporary chairman.

However, the Image Dissector camera was found to be lacking in light sensitivity, requiring excessive levels of illumination.

However, mutants resistant to heat but lacking dipicolinic acid have been isolated, suggesting other mechanisms contributing to heat resistance are at work.

However, by 1815, with the publication of physician Gilbert Blane's On the Comparative Health of the British Navy from 1779 to 1814, the efficacy of portable soup for promoting the health of sailors was found lacking.

However Harrison thought that it sounded weak, and was lacking something.

However, evidence of the actual use of the Q-over-o notation in medieval manuscripts is lacking ; if anything, medieval forms of the upper component seem to be evolving towards the q-shape rather than away from it.

However, other studies have shown that the CTR is not essential for secretion itself, but mutants lacking the CTR were much less efficient in activating downstream signaling events.

However, the French had taken heavy casualties and, lacking artillery and armor, Barré was forced to withdraw.

However, Disra was being manipulated by his aide, Major Grodin Tierce, a cloned Royal Guardsman with all of Thrawn's tactical genius but lacking his political vision.

However, ships were lacking at first and what naval forces were available were unable to prevent Britain from taking effective control of the Dutch colonies ( in the Indian Subcontinent all of the Dutch colonies were taken ).

However, the role of the immune system is not fully understood, and it has recently been reported that an animal model of psoriasis can be triggered in mice lacking T cells.

However, If Ethernet is used without EtherType field, Ethernet is considered as lacking LLC sublayer.

However, in this case as elsewhere it was necessary to arrive at a single standard to be applied to all situations, representing an averaging of conditions, and thus to fix particular points in time which would be considered the dividing points between daytime and nighttime conditions.

However, one can argue that no such control is necessary as long as one pretends that the anti-trust laws are effective and rational.

However, the Vikings lacked both the equipment necessary to undertake a siege against the burh and a developed doctrine of siegecraft, having tailored their methods of fighting to rapid strikes and unimpeded retreats to well defended fortifications.

However, that is not necessary.

However, even without the order of the captain, any member of crew or passenger, can take reasonable measures, when he or she has reasonable grounds to believe that such action is necessary to protect the safety of the aircraft, or of people or property therein.

However, Astbury did not have the necessary data on the bond geometry of the amino acids in order to build accurate models, especially since he did not then know that the peptide bond was planar.

However, it does suffer from nitrogen embrittlement, reacting with nitrogen from air and forming brittle nitrides at the high temperatures necessary to work the metal parts.

However, demolishing these historic structures required considerably more effort than would have been necessary had they been in real danger of collapse.

However, the term is applied to multidimensional data as well as to univariate data and in situations where a transformation of the data values for some or all dimensions would usually be considered necessary: in the latter cases, the notion of a " central location " is retained in converting an " average " computed for the transformed data back to the original units.

However, in CL it is necessary to explicitly refer to the function namespace when passing a function as an argument — which is also a common occurrence, as in the example above.

However, if neither of these organisms is isolated, it is necessary to send stool specimens to a reference laboratory.

However, he cannot permanently ' reprogram ' human minds to believe what he might want them to believe even if he wanted to do so, explaining that the mind is an organism that would always recall the steps necessary for it to reach the present and thus ' rewrite ' itself to its original setting if he tried to change it.

However, the president may waive those requirements if he determines the officer is necessary for national interest.

However, it may not leave an audit trail of actions or provide the kinds of controls necessary in a multi-user organization.

However, this overlooks those parts of scripture which provide for the doctrine of the " Two Swords " and for the medieval Roman Catholic concept of the powers of kings to protect the Christian Constitution of states, to defend and extend the boundaries of Christendom by lawful means only, to protect and defend the innocent, the weak, the poor and the vulnerable, and to protect the church and the papacy with the king's own life, if necessary.

However, he typically did not make such distinctions unless they were necessary.

However, FLARE has most likely not reached optimal design requirements and further understanding of FLARE and how it works is completely necessary to ensure the evolution of the technology.

However, some argue that while male engagement with feminism is necessary, it is problematic due to the ingrained social influences of patriarchy in gender relations.

However, many stage and film adaptations have seen it necessary to include Falstaff for the insight he provides into King Henry V's character.

However, since hydrogen is necessary for the reactions listed above, the fuel selected must contain hydrogen atoms.

However, it would be incorrect to assume that Verdi underestimated the expressive power of the orchestra or failed to use it to its full capacity where necessary.

However, the spring offensives all failed, as the Allies fell back and regrouped, and the Germans lacked the reserves necessary to consolidate their gains.

However, the Roman Army was flexible, with units being used and moved whenever necessary, so this is not certain.

However, a referendum on devolution in 1979 was unsuccessful as it did not achieve the necessary support of 40 per cent of the electorate ( despite a small majority of those who voted supporting the proposal ) and the SNP went into electoral decline during the 1980s.

However, while the indefinite article ein is omitted when speaking of an individual's profession or residence, it is still necessary when speaking in a figurative sense as Kennedy did.